Surgical Management of Posterior Inferior Cerebellar Artery Aneurysms

Abstract

Posterior inferior cerebellar artery (PICA) aneurysms are rare and make up 0.65%–3% of all intracranial aneurysms [11, 21]. In 1953, Rizzoli and Hayes first reported successful surgical treatment of a PICA aneurysm operated in 1947 [25]. Since then, there have been several reports on the surgical management of PICA aneurysms [6, 7, 11, 13, 15, 21]. However, as these aneurysms are rare, surgical experience with them has generally been limited. We present our experience over the past 9 years with 11 patients who underwent clipping of PICA aneurysms.